21000427920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1535119}}^1$

素因数の和:1535157

約数の個数: 120

約数和(自身を含む): 74238403200

約数和(自身を除く): 53237975280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 1535119, 3070238, 4605357, 6140476, 7675595, 9210714, 12280952, 13816071, 15351190, 18421428, 23026785, 24561904, 27632142, 29167261, 30702380, 36842856, 46053570, 55264284, 58334522, 61404760, 69080355, 73685712, 87501783, 92107140, 110528568, 116669044, 122809520, 138160710, 145836305, 175003566, 184214280, 221057136, 233338088, 262505349, 276321420, 291672610, 350007132, 368428560, 437508915, 466676176, 525010698, 552642840, 583345220, 700014264, 875017830, 1050021396, 1105285680, 1166690440, 1312526745, 1400028528, 1750035660, 2100042792, 2333380880, 2625053490, 3500071320, 4200085584, 5250106980, 7000142640, 10500213960, 21000427920]

約数ペア:

[(1, 21000427920), (2, 10500213960), (3, 7000142640), (4, 5250106980), (5, 4200085584), (6, 3500071320), (8, 2625053490), (9, 2333380880), (10, 2100042792), (12, 1750035660), (15, 1400028528), (16, 1312526745), (18, 1166690440), (19, 1105285680), (20, 1050021396), (24, 875017830), (30, 700014264), (36, 583345220), (38, 552642840), (40, 525010698), (45, 466676176), (48, 437508915), (57, 368428560), (60, 350007132), (72, 291672610), (76, 276321420), (80, 262505349), (90, 233338088), (95, 221057136), (114, 184214280), (120, 175003566), (144, 145836305), (152, 138160710), (171, 122809520), (180, 116669044), (190, 110528568), (228, 92107140), (240, 87501783), (285, 73685712), (304, 69080355), (342, 61404760), (360, 58334522), (380, 55264284), (456, 46053570), (570, 36842856), (684, 30702380), (720, 29167261), (760, 27632142), (855, 24561904), (912, 23026785), (1140, 18421428), (1368, 15351190), (1520, 13816071), (1710, 12280952), (2280, 9210714), (2736, 7675595), (3420, 6140476), (4560, 4605357), (6840, 3070238), (13680, 1535119)]